Edward a



l; (No Model.) E. A. SMITH. r Earth Auger No. 230,830. .PatentedAug.v3', 1880.

INVBNTOR I 60. 7W/ff ATTORNEYS.

-LIIHDGHAPHEIL WASHINGTON, D. CA

marins, vunfn UNITED STATES PATENT OEFTCE.

EDWARD A. SMITH, OF GREELEY, COLORADO.

EARTH-AUGER.

SPECIFICATION forming part of Letters Patent No. 230,830, elated August3, 1880.

Application filed May 5, 1880. (No model.)

To all whom it may concern:

Be it known that I, EDWARD A. SMITH, of Greeley, in the county of Weldand State of Colorado, have invented a new and useful Improvement inVell-Augers, of which the following is a specification.

y invention consists in a novel construction, arrangement, andcombination of tl1e casing, the cutter, and the drill-point in awellanger, whereby several advantages are obtained, as hereinafterdescribed.

In the accompanying drawings, Figure l is a vertical sectional View,showing my invention in working position in the ground. Fig. 2 is asection taken in the line x x of Fig. l, showing the cutter in oneposition. Fig. 3 is a similar view, showing the cutter in anotherposition. Fig. et is a detail view of the cutter.

Similar letters of reference indicate corresponding parts.

A represents a cylindrical casing, having its top entirely open and itsbottom halfopenthat is to say, the bottom ot' the casing is providedwith a selnicircular plate which closes half of it, whilel the otherhalf is entirely open.

The upper end of the cylindrical casing is provided with a skeletonframe, B, through which and through the semicireular bottom plate worksa vertical shaft, O. A collar, D, provided with a set-screw,'c, fits onthe shaft O and rests on the top of the frame B, and thus prer'ents theshaft from sliding, but at the saine time allows it to turn freely.

The lower end of the shaft O is of drill form, instead of being conicaland pointed, and thus the friction is lessened.

To the lower portion of the shaft Gis attached the cutter, whichconsists of a semicircular plate, F, with a cuttin g-blade, G, formed inone piece therewith. The upper side of the plate F is provided with avertical stud, h, which engages with the radial edge of the semicircularbottom plate of the casing, and

thus limits the play of the cutter to half a revolution.

The parts being in the position shown in Fig. l, the auger is rotated inthe same manner as an ordinary auger. When the casing becomes full theshaft C is reversed to the extent of half a revolution. This places theplate F in such a position as to entirely close the bottom of the casingand allow it, with its contents, to be raised up from the bore.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- I In a well-auger, the combination of avibrating auger-shaft, C, the stationary box A, open at top and haltopen at bottom, the skeleton frame B, attached to said case, and thesemicircular plate F, made fast to shaft, carrying stud h, and providedwith blade G, as shown and described, whereby the earth is removed bysimply raising the frame with case and allowing it to discharge atbottom.

EDWARD AL. SMITH.

Witnesses:

WTLLTAM HENRY FARE, GYEUs W. MA'rrEsoN.

